Phase transformation of methane hydrate under high pressure |
| |
Authors: | Sun Qiang Duan Ti-Yu Zheng Hai-Fei Ji Jian-Qing Wu Xiang-Yang |
| |
Affiliation: | School of Earth and Space Science, Peking University, Peking 100871, China. |
| |
Abstract: | In situ Raman spectroscopy is employed to study the phase behavior of methane hydrate at high pressure. The structure 1 of methane hydrate can be maintained up to 950 MPa at 299 K. The transformation of structure I<-->structure H+water+CH4 occurs at 880 MPa and 323 K. The structure H of methane hydrate, however, decomposes to methane and water at 960 MPa and 348 K. The initiation mechanism of methane hydrate sI is also discussed. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|